Gas-producing oven



C. OTTO July 8, 1930.

GAS PRODUCING OVEN Filed March 5, 1929 3 Sheets-Sheet 1 Y ATTORNEY July8, 1930. t c. OTTO c-As PRODUCING bvEN Filed Mar 1929 s Sheets-Sheet 2INVENTOR CM cans. BY

ATTORNEY July 8, 1930. c, oTTo GAS PRODUCING OVEN s Sheets-Sheet .5

Filed March 5, 1929 Fig.5.

NTOR

ATTORNEY ual inlets to the flues of the strong CARL care, orESSEN-RUHB,-G P

ens-rnonucrne ovniv Application filed March 5, 1929,

It has already been proposed, for the purpose of regulating the level ofthe points of union of gas and air in the heating fines of coke ovens,to adjustably arrange the individgas of each heating wall as to theirvertical distances from the inlets, of the air or the air-weak gasmixture located at the bottom of the heating flue. is varied by puttingnozzle tubes of different length on the stationary nozzle bricks of thestrong gas feeding conduit.

The burner arrangement and gas supply for the heating dues of gasproducing ovens forming the subject-matter of the present invention,constitutes a continuation in part of my prior application Serial No.83,964 (Patent No. 1,748,1433), and relates to a particularly suitableand advantageous further developent of the heating arrangement byprovidi g in each heating flue a plurality of strong gas (rich gas, forexample coke oven gas) in lets arranged at difierent levels above theair inlets located at the bottom of the heating flue, which strong gasinlets can be supplied selectively with gas from their respectiveascension conduits. The possibility 1s afiorde'd hereby of displacingthe greatest heating effect in each heating'fiue within the shortesttime as desired either into upper or. lower see- I tions ofthe heatingfines so that the oven can be adapted in a degree not obtained hitherto,to the difi'erent and varying requirements of heat of its indivdualportions. *The calorific value'of the fuel supplied to the heating wallportions located above each individual burner point between tworeversals may also be varied, as by varying the composition of thegas-air mixture supplied between two reversals. it is possible, of thisburner arrangement a multi-level heating that corresponds to the numberof strong gas inlets existing in the individual heating flues. A heatingof this character will be of a particular importance with the moderncoke ovens having horizontal coking chambers and recently employed moreand more, which chambers have a height of more than 4 meters. Everystrong gas inlet of each heating flue may be set in communication withthe lhe level of the strong gas inlets relate to the first, Figures 3and a to to obtain by means Serial No. 844,412, and. in Germany November25, 1925;

strong gas supply pipe by a special ascension conduit that selectivelymay be connected thereto by a controlling valve. Furthermore, all theascension conduits leading to the strong gas inlets of equal level of aheating wall may be connected each with a special feeding pipe adaptedto be selectively connected to the gas main trolling valve.

A further improvement and refinement of the above-explained idea of theinvention may consist in the strong as inlets, provided in each heatingflue, o difierent level above the floor of the latter having difi'erentlevels :also relatively to the strong gas inlets of the neighboringheating tlues.

Furthermore, also the weak gas (for example, producer gas) inlets mayhave levels diflering in plurality of such'inlets of different levelbeing pre erably provided in each heating fiue.

Besides, the change in feeding the individual strong gas inlets withineach heating flue may be performed independently of the reversal andofthe change, required therefor, in the gas 'supply to the heatin fiuesthemselves. This construction of t e hereinbe fore described gas supplyis particularly well suited to be applied to'twin flue ovens.

Four embodiments of the invention are illustrated by way of exam le inthe accompanying drawings, in whic Figures 1 and}? t e second, Figure 5to the third, and Figure 6 to the fourth embodiment. In particularFigure 1 is a vertical longitudinal section through the oven battery online 1-1 of Figure 2,

Figure 2 i's'a horizontal section on line 2-2 of Figure 1, seen from thetop,

Figure 3 is a vertical longitudinal cross section through the ovenbatttery on line 3-3 of Figure 4,

Figure 4' is a horizontal cross section on line H of Figure 3, seen fromthetop,

Figure 5 is avertical longitudinalsection through a heating wall, and IFigure 6 is likewise a vertical-longitudinal section through a heatingwall.

i 1 '8' is a detail view ot the valve can by means of a contheindividualheating flues', a

the one hand, and "ascension conduits e on the other hand heheatingfines c the bottoms of the fines being at the same level.

Two strong gas nozzle bricks d, e form the es inlets and are preferablyarranged in one heating due and communicate through appurtenantascension conduits d and (2 with a suitable strong gas feeding pipe. Thecombustion. air is supplied to each heating fine its bottom from theregeneretors f by connecting channels g. The supply of strong gas to thehigher nozzle bricks (Z and to the lower ones e may be made by theappurtenant escension conduits d and e. The ascension conduits by meansof a suitable supply pipe mey be connected to the strong gas resin 0(see Figure 5). They may be selectively connected with the strong snpplypipe by moons of a controlling velve or the A modification I of thisarrangement may consist in all nozzle ascension conduits a? on allbricks c with their bricks a7 with their mg connected each to it specialsupply pipe brencheol oil from the strong gas main, which brench pipesniny likewise be connected sel ctively to the said strong gos main bymeans of controlling vslve (see Figure 5). This modification eitords theadvantage of the gee supply beingchsnged at once by a single motion ofthe vslve from the higher nozzle bricks to the lows? ones endvicev'erss, By the firstcnentioned arrangement it is possible for eachheating due to he set to the higher or lower nozzle bricks independentlyoi the other The bricks a? and e be disposed either close to one netherin close connection o he y no separating wells a or they may he cos d asfreely standdiiierent levels is ove Further? more m composed F tions yfurther e described ioyed else in if CGIH- ssh gas, in r snhdivided in lregenn hosting rogeneretor one recuperative ovens, as also with any Endof subdlvision of the heating walls, such as into halves, gronys or twinfines. I

The second embodiment will now be described with reference to'Figures 3end 4, wherein ports that correspond to the first embodiment,-aredenoted by the same reference letters. v

Two strong gas inlets a3 and e, d 6 located at difierent levels abovethe bottoms it of the heating fines are arranged in the duo's of thehosting wells 6, 5 According to the invention the inlets fine c (Figure4) ereals'o arranged at another level above the floor h of the line thanthe corresponding inlets d and c of the neighbouring heating fines 0 Thesame difierence of the level of the strong ges inlets exists also withthe corresponding heating fines of neighbouring heating walls, asparticularly to be seen from Figure 3. In this manner at chessboard-like distribution of the strong gas inlets of equal level abovethe floor is obtained throughout the entire oven plant, end it isfurther obtained thereby that each oven chamber gets a four-levelheating, whereby even with the greatest chamber height an absolutelyuniform heating of the charge in vertical direc tion is secured.

While with pure strong gas heating all the regenerators 7" serve topreheat the combos tion air, which is supplied to the heating fines attheir iioor it by the channels 9, in week gas hosting the moiety of theregeneretors is set to gee in. the usuel manner. The regeneretorsserving to preheat the gee, end the channels connecting them with theheating fines are denotedhy f and g in Figure 3. In spite of the fact,that normally in week see hosting no rnnlti level heating is requireddue to the flame/being long in itself, it will be desirable to theheight of the oven chamber having recently been extraordinerilyincreased, To this end two weak gas lets c" and k may he srrc in eachheatfiue c, which have detcnsined diiierent oi -the tine, each the bottthe respective rea g According to eh m ement of the gas inlets izneeting fines 0' diff corres to b lets of other i be described withreference to Figures 5 ahd 6, parts corresponding to the firstembodiment being denoted by the same reference letters.

Referring to heating fiues 0 are desi the third embodiment, the ed inpairs 0 s usual in twin flue heating, either the alter- 'nate flues c ofa wallor the intermediate fines c are fed with gas. Of the strong gasinlets of each. flue c,'the higher inlets, d, are connected through theappurtenant ascension conduits d to a supply pipe m, whilst the lowerinlets e through their ascension conduits e are connected to a supplypipe '11 In each flue c is likewise provided a hlgher and a lowerinlet-o and p, respectively. All

inlets 0 are connected through ascension con-- duits 0 to a supply pipeand all inlets 17 through the ascension con uits p to a supply pipe 1'.s and 8 respectively, the pipes m and n on the one hand and the pipes gand 1' on the other hand may be fed each with gas either commonly or'alternately. lhe bends t and 6' leading to the valves 8 and 8 may beselectively set in connection with the gas main 0 by means of acontrolling valve u. As shown in Fig. 7, valve u is in position to allowgas to flowto bend t. Upon reversal of the oven, valve u is turned tosupply gas to bend t. Bend t isconnected to supply pipes Q and r 'by avalve 8'. The valve e,fas shown, is in position to supply gas to bothpipes g and r. Turning the valve 90 'degrees will cut the gas supply efifrom one of the pipes and permit gas tn flow to the other of said.pipes. Bend 2? communicates with supply pipes at and n by means of asimilar valve 8.

The heating takes place in the following manner: y

When the heating .fiues 0 are used, the bend t is fed with gas fromthewmain o by positioning the valve a correspondingly. The strong gasflowing through the bend t is distributed according to the position ofthe three-way valve 8 either to the pipes q and nor only to one of thesepipes, for example, the pipes'g. In the former case all inlets 0 and pof the heating flues c are fed with gas, whilst in the latter case onlythe higher inlets 0 are fed. To feed gas to the By means of a three-wayvalve though 0 have been fed duringa for example, half an After theflues sufliciently long time, hour, the usual reversal takes the valvesu. Now the bends t are fed with gas and from these, by suitablypositioning the valves '8, the pipes m and 'n; are sup lied either incommon or only one of them. s to be understood in this case too areversal. of the gas supply to the group an or n is made best in theintervals between the reversal of the valves u. The valves sand 8 ma bedesigned so as to feed gas-in one end osltion only the pipes in or q, inthe other en position only the pi es n or r, andin the intermediateposition bot pipes m and n or g and 1'. In this manner it is possible toset all valves 8 or 8 position by means of one single actuated from thereversing wine ull member As usual,

lace which, as to the gas supply is effected y reversing at the desiredalso the valves 1 are actuated by means of one pull member from thewinch.

' The described gas sup 1y afiords the ad-' I vantage of the changeofeed of the heating flues' a and 0 obtained by the reversal of thevalves u andofgthe air supply,"being efiected. quite independently ofthe manner of heatin within the individual heating flues. As alrea ypointed out,.the two gas inlets of each fed heating flue may be suppliedwith gas either lH- COHHMOII or alternately. It is therefore possible todisplace in the simplest manner the highest heating sheet in each flueas desired either into upper or lower sections of the flue. If'now, asillustrated,

' the inlets d and e of the dues a differ in level not only from oneanother, but also relatively to the corresponding inlets o and p of thedues '0 a four-level heating is obtained and the inlets of eachindividual level. can be fed with gas fora period of any desiredduration. 7

The embodiment illustrated in Figure 6 substantially difiers'from thelast-described by the fact, that the inlets o and p of the alternateheating fines and their ascension conduits 0 and p are combined so as toform each one single inlet w and conduit w the supply pipes g and 1'consequentl forming also one pipe m. In this modifie gas supply a valve8 may of course be dispensed with the pipe m. In spite of this notablesimplification a three-level heating is still a possible in-thismodification, if the level of the inlet to difiers from that of theinlets d and e.

The above-described invention is of course not limited to the heating oftwin fines, al-

it afiords even with this construction. So the invention may be employedwith ovens the walls of which are heated in halves, this being performedin the simplest manner by juxtaposing onthe one hand fiues c and allfines on the other hand and designing the gas supits greatest advantagesviding in one being subdivided into vertical ply accordingly, byarranging the bends t with the valves .5; and the appurtenant pipes mand n on the one side of the main "0 and the bends?! with the valves 8and pipes 53 and r on the other side of main 'v and by now feeding withgas the right-hand or left-hand half of the heating wall by reversingthe valves a. In a similar manner the invention may be employed bestwith ovens in all the lines of one heating Wall of vvhich the same gasdirection is always prevailing, by proheating wall only fines c and inthe other well only lines 0 Having now particularly described andascertained the nature of my said invention and in What manner the sameis to be performed, I declare, What I claim, is 3- 1. In a gas producingoven having a horizontally elongated oven chamber, heating Wallstherefor arranged on tvvo opposite sides of said chamber, each oi saidheating Walls being subdivided into vertical heating fines, the bottomsof said flues being at the same level,a plurality of strong gas inletsfor each of a plurality of said lines, the inlets Within each of saidflues being arranged at difierent levels above the bottom of the flue,means for supplying strong gas jointly or independently to said inletsand means for supplying air at the bottoms of the fines.

2. In a gas producing oven having a'horizontally elongated oven chamber,heating Walls therefor arranged on two opposite sides of said chamber,each of said heating vvalls heating three, the bottoms of said iluesbeing the same level, a plurality of strong gas inlets arranged Withineach alternate fine of each of the hea ing walls, the inlets Within eachof said alternate fines bein arranged difierent levels above the bottomof the flue, means for supplying s rong gas jointly or independently tosaid inlets and means for supplying air to said "s belovv said inlets.

oclucing oven having a horiec. oven chamber, hea -i Walls thereforrranged on two opposite 51L of said chamber, each of heating walls beingsubdivided the level, a plus: Within each I v ues, of ea the be a arrngecl at above o hot one of the flue, means joint or independel saidinlets a means p .ing air said Flues, at bottoms oftne lines 4-. n a gasoducing oven having a horizontally olon Wells there a of said ch n Ibeing subd the bott level, a p

zontally el sel fines being at the Fitz; m

ranged on tvvo .vvith relation to the into vertical heating i l e 7 'L4. ted oven cuainoer, heating .e '1' a r @J. solo heating witness theflues being arranged at difierent levels above the bottom of the flue,the inlets of the fine being also arranged at difierent levels inletsor" a neighboring flue, means for supplying strong gas to said inletsand means for supplying air to said fines below the inlets.

5. In a as producing oven having a horizontally rfiongated oven chamber,heating Walls therefor arranged on two opposite sides of said chamber,each of said heating Walls being subdivided into vertical heating linesthe bottoms of said fiues beingat the same level, a. plurality ofstronggas inlets for each of said fiues, the inlets of each of the lines beingarranged at dili'erent levels above the bottom of the line, the inletsof the line being also arranged at different levels with relation to theinlets of a line in aneighboring heating Wall, means for supplyingstrong gas to said inlets and means for supplying air to the fines belowsaid inlets.

6. In a gas producing oven having a horizontally elongated oven chamber,heating vvalls therefor arranged on two opposite sides of said chamber,each of said heating Walls being subdivided into vertical heating finesthe bottoms of s id fines being at the same level, a plurality of stronggas inlets arranged Within each of said lines, the inlets of each of thefines being arranged at different levels above the bottom of the hue,the inlets oi the flue being arranged different levels with relation tothe inlets of a neighboring line in the some well, and being alsoarranged at difierent levels with relation to the inlets of a flue in aneighboring heating Wall, means for supplying strong gas to said inletsand means for supplying air to said fines.

7, In a producing even having horiuontely elongated oven chamber, andadapted to be heated selectively with strong gas or Weak gas, heatingWalls therefor arranged on two opposite sides of said chamber, each ofsaid heating vvalls being subdivided into vertical heating fines thebottoms of said fines being at the same level, a plum ity of strong gasinlets arranged Within each a plurality of said lines, the inlets ofeach of Hues bearranged diiierent levels above the of the flue,plurality of weal: gas mete arrange-d within each of a plurality aidlines, means for supplying strong 0 said strong inlets, I eons forsupply- 8., a producing oven zontally elon ated oven chamber, a

to be heated eel. or gas, on two opposite s i 1 tool efor arranged Icnainoer, seen a sued 1 .s. 1 ve heatin i imaaee gas inlets arrangedwithin each of said fines,

the inlets of each of the fines being arranged at difierent levels abovethe bottom of the flue, a plurality of weak gas inlets arranged withinand at difierent levels above the'bottom of each of said flues, thestrong gas inlets of each of-said flues being also arranged at difierentlevels with relation to the weak gas inlets of the said flue, means forsupplying strong gas to the strong gas inlets, means for sup lying weakgas to the-weak gas inlets, an means for supplying air to the fluesbelow said inlets.

9. In a gas producing oven having a horizontally elongated oven chamber,heating walls therefor arranged on two opposite sides of said chamber,each of said heating walls being subdivided into vertical heating fluesthe bottoms of said flues being at the same level, a plurality of stronggas inlets arranged within and at different levels above the bottom ofeach of said flues, the inlets of alternate fines of a Wall being alsoarranged at different levels with relation to the inter mediate fines ofthe same heating wall, an ascension conduit communicably connected toeach of the inlets of the'fiues, gas supply pipes, the conduits for theinlets of equal level in one of said walls being communicably connectedto an individual supply pipe, a strong gas main, communicatingconnections etween the strong gas main and the gas supply pipes, valvemeans for controlling the supply of gas to the strong gas inlets andmeans for supplying air to" the fines, below said inlets.

In testimony whereof, name to this specification.

CARL OTTO.

I have signed my

